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<FONT color="green">001</FONT>    package metaface.interaction;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.*;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.io.*;<a name="line.4"></a>
<FONT color="green">005</FONT>    /**<a name="line.5"></a>
<FONT color="green">006</FONT>     *  This class provides a response to a user's interaction with natural language<a name="line.6"></a>
<FONT color="green">007</FONT>     *  or hypertext<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *@author     Simon Beard <a name="line.9"></a>
<FONT color="green">010</FONT>     *@version    1.0<a name="line.10"></a>
<FONT color="green">011</FONT>     *@see        InteractionManager<a name="line.11"></a>
<FONT color="green">012</FONT>     */<a name="line.12"></a>
<FONT color="green">013</FONT>    public class Response {<a name="line.13"></a>
<FONT color="green">014</FONT>            /**<a name="line.14"></a>
<FONT color="green">015</FONT>             *  This reponse is a file<a name="line.15"></a>
<FONT color="green">016</FONT>             */<a name="line.16"></a>
<FONT color="green">017</FONT>            public final static int FILE = 0;<a name="line.17"></a>
<FONT color="green">018</FONT>            /**<a name="line.18"></a>
<FONT color="green">019</FONT>             *  This reponse is textual<a name="line.19"></a>
<FONT color="green">020</FONT>             */<a name="line.20"></a>
<FONT color="green">021</FONT>            public final static int TEXT = 1;<a name="line.21"></a>
<FONT color="green">022</FONT>            /**<a name="line.22"></a>
<FONT color="green">023</FONT>             *  The DMTL string response<a name="line.23"></a>
<FONT color="green">024</FONT>             */<a name="line.24"></a>
<FONT color="green">025</FONT>            private String response;<a name="line.25"></a>
<FONT color="green">026</FONT>            /**<a name="line.26"></a>
<FONT color="green">027</FONT>             *  The DMTL reference to the response<a name="line.27"></a>
<FONT color="green">028</FONT>             */<a name="line.28"></a>
<FONT color="green">029</FONT>            private String reference;<a name="line.29"></a>
<FONT color="green">030</FONT>            /**<a name="line.30"></a>
<FONT color="green">031</FONT>             *  Wether the repsone is TEXT or a FILE<a name="line.31"></a>
<FONT color="green">032</FONT>             */<a name="line.32"></a>
<FONT color="green">033</FONT>            private int type;<a name="line.33"></a>
<FONT color="green">034</FONT>            /**<a name="line.34"></a>
<FONT color="green">035</FONT>             *  The reference path to the response<a name="line.35"></a>
<FONT color="green">036</FONT>             */<a name="line.36"></a>
<FONT color="green">037</FONT>            private Stack referencepath;<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>    <a name="line.39"></a>
<FONT color="green">040</FONT>            /**<a name="line.40"></a>
<FONT color="green">041</FONT>             *  Constructor for the Response object<a name="line.41"></a>
<FONT color="green">042</FONT>             *<a name="line.42"></a>
<FONT color="green">043</FONT>             *@param  responsestring   The DMTL PCDATA response<a name="line.43"></a>
<FONT color="green">044</FONT>             *@param  referencestring  A reference string to another response state (may be<a name="line.44"></a>
<FONT color="green">045</FONT>             *      null)<a name="line.45"></a>
<FONT color="green">046</FONT>             *@param  responsetype     The type of response (TEXT by default)<a name="line.46"></a>
<FONT color="green">047</FONT>             */<a name="line.47"></a>
<FONT color="green">048</FONT>            public Response(String responsestring, String referencestring, int responsetype) {<a name="line.48"></a>
<FONT color="green">049</FONT>                    int i;<a name="line.49"></a>
<FONT color="green">050</FONT>                    int j;<a name="line.50"></a>
<FONT color="green">051</FONT>                    String temp;<a name="line.51"></a>
<FONT color="green">052</FONT>    <a name="line.52"></a>
<FONT color="green">053</FONT>                    //Set internat variables<a name="line.53"></a>
<FONT color="green">054</FONT>                    response = responsestring;<a name="line.54"></a>
<FONT color="green">055</FONT>                    reference = referencestring;<a name="line.55"></a>
<FONT color="green">056</FONT>                    type = responsetype;<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>                    //Create the reference path to this response<a name="line.58"></a>
<FONT color="green">059</FONT>                    referencepath = new Stack();<a name="line.59"></a>
<FONT color="green">060</FONT>                    if (reference != null) {<a name="line.60"></a>
<FONT color="green">061</FONT>                            if (DMTLDebugger.debug) {<a name="line.61"></a>
<FONT color="green">062</FONT>                                    System.out.println("Creating state reference: " + referencestring);<a name="line.62"></a>
<FONT color="green">063</FONT>                            }<a name="line.63"></a>
<FONT color="green">064</FONT>                            i = 0;<a name="line.64"></a>
<FONT color="green">065</FONT>                            j = 0;<a name="line.65"></a>
<FONT color="green">066</FONT>                            i = reference.indexOf('.');<a name="line.66"></a>
<FONT color="green">067</FONT>                            while (i >= 0) {<a name="line.67"></a>
<FONT color="green">068</FONT>                                    temp = reference.substring(j, i);<a name="line.68"></a>
<FONT color="green">069</FONT>                                    referencepath.push(temp);<a name="line.69"></a>
<FONT color="green">070</FONT>                                    i++;<a name="line.70"></a>
<FONT color="green">071</FONT>                                    j = i;<a name="line.71"></a>
<FONT color="green">072</FONT>                                    i = reference.indexOf('.', i);<a name="line.72"></a>
<FONT color="green">073</FONT>                            }<a name="line.73"></a>
<FONT color="green">074</FONT>                            i = reference.length();<a name="line.74"></a>
<FONT color="green">075</FONT>                            temp = reference.substring(j, i);<a name="line.75"></a>
<FONT color="green">076</FONT>                            referencepath.push(temp);<a name="line.76"></a>
<FONT color="green">077</FONT>                    }<a name="line.77"></a>
<FONT color="green">078</FONT>            }<a name="line.78"></a>
<FONT color="green">079</FONT>    <a name="line.79"></a>
<FONT color="green">080</FONT>    <a name="line.80"></a>
<FONT color="green">081</FONT>            /**<a name="line.81"></a>
<FONT color="green">082</FONT>             *  Constructor for the Response object<a name="line.82"></a>
<FONT color="green">083</FONT>             *<a name="line.83"></a>
<FONT color="green">084</FONT>             *@param  responsestring   The DMTL PCDATA response<a name="line.84"></a>
<FONT color="green">085</FONT>             *@param  responsetype     The type of response (TEXT by default)<a name="line.85"></a>
<FONT color="green">086</FONT>             *@param  referencestack   Description of the Parameter<a name="line.86"></a>
<FONT color="green">087</FONT>             */<a name="line.87"></a>
<FONT color="green">088</FONT>            public Response(String responsestring, Stack referencestack, int responsetype) {<a name="line.88"></a>
<FONT color="green">089</FONT>                    response = responsestring;<a name="line.89"></a>
<FONT color="green">090</FONT>                    reference = "";<a name="line.90"></a>
<FONT color="green">091</FONT>                    type = responsetype;<a name="line.91"></a>
<FONT color="green">092</FONT>                    referencepath = (Stack) referencestack.clone();<a name="line.92"></a>
<FONT color="green">093</FONT>            }<a name="line.93"></a>
<FONT color="green">094</FONT>    <a name="line.94"></a>
<FONT color="green">095</FONT>    <a name="line.95"></a>
<FONT color="green">096</FONT>            /**<a name="line.96"></a>
<FONT color="green">097</FONT>             *  Gets the type attribute of response (TEXT or FILE)<a name="line.97"></a>
<FONT color="green">098</FONT>             *<a name="line.98"></a>
<FONT color="green">099</FONT>             *@return    The type<a name="line.99"></a>
<FONT color="green">100</FONT>             */<a name="line.100"></a>
<FONT color="green">101</FONT>            public int getType() {<a name="line.101"></a>
<FONT color="green">102</FONT>                    return (type);<a name="line.102"></a>
<FONT color="green">103</FONT>            }<a name="line.103"></a>
<FONT color="green">104</FONT>    <a name="line.104"></a>
<FONT color="green">105</FONT>    <a name="line.105"></a>
<FONT color="green">106</FONT>            /**<a name="line.106"></a>
<FONT color="green">107</FONT>             *  Gets the DMTL response string<a name="line.107"></a>
<FONT color="green">108</FONT>             *<a name="line.108"></a>
<FONT color="green">109</FONT>             *@return    The response<a name="line.109"></a>
<FONT color="green">110</FONT>             */<a name="line.110"></a>
<FONT color="green">111</FONT>            public String getResponse() {<a name="line.111"></a>
<FONT color="green">112</FONT>                    return (response);<a name="line.112"></a>
<FONT color="green">113</FONT>            }<a name="line.113"></a>
<FONT color="green">114</FONT>    <a name="line.114"></a>
<FONT color="green">115</FONT>    <a name="line.115"></a>
<FONT color="green">116</FONT>            /**<a name="line.116"></a>
<FONT color="green">117</FONT>             *  Gets the reference to another response<a name="line.117"></a>
<FONT color="green">118</FONT>             *<a name="line.118"></a>
<FONT color="green">119</FONT>             *@return    The reference path<a name="line.119"></a>
<FONT color="green">120</FONT>             */<a name="line.120"></a>
<FONT color="green">121</FONT>            public Stack getReference() {<a name="line.121"></a>
<FONT color="green">122</FONT>                    return (referencepath);<a name="line.122"></a>
<FONT color="green">123</FONT>            }<a name="line.123"></a>
<FONT color="green">124</FONT>    }<a name="line.124"></a>




























































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